Smoke detector housing



FIG. 1 is a top plan view of a smoke detector housing, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view, the rear elevation being identical thereto;

FIG. 4 is a right side elevational view, the left side being identical thereto. 

The ornamental design for a smoke detector housing, as shown and described. 